It allows to jump through the set of Cockpit saved views accessible fr om the Number pad (RCtrl Num1-9)...
- Using the 4 Joystick's hats
- A SHORT-PRESS to choose the currently SELECTED VIEW wh ere to jump back
- A LONG-PRESS displays one of the other saved views, as a transient LOOKED VIEW.
- Releasing the long-pressed button jumps back to the SELECTED VIEW.
- Hat #1 gets you back to TrackIR / Slow normal viewing.

S4 selects the O-Layer as a SHIFT button so activate the O-Layer mapping of H1-4 on the Joystick.